Planetary transmission mechanism.



A. P. BRUSH.

PLANETARY TRANSMISSION MEGHANISM.

APPLICATION FILED APR.10,1908. 944,597. Patented De.28,19o9.

4 SHEETS-SHEET 1.

A. P. BRUSH. PLANETABY TRANSMISSION MEGHANISM. APPLICATION FILED APR. 10.1908. 944,597. f Patented De@.2s,1909.

4 SHEETS-SHEET 2.

mw I MMM A. P. BRUSH.

PLANETARY TRANSMISSION MBGHANISM. APPLIoATIoN FILED APR.10.1908.

944,597.- Patented Dec. 28, 1909.

4 SHEETS-SHEET 3.

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A. P. BRUSH. PLANETARY TRANSMISSION MEGHANISM.

. APPLICATION FILED APB., 10.1908. 944,597. l Patented 1m28, 1909.

4 SHEETS-SHEET 4.

In v e izo l UNITED STATES division.

.ALANSON P. BRUSH, OF DETROIT, MICHIGAN.

PATENT PIiANlElTAlR/Y` TRANSMISSION ,MECHANISMLQ Specication of Letters Patent. Pate'llted Dec. 28, 1909.

Application inea A'prii'io, 190s. serial No. 426,236.11y

the subject matter of my prior patent No.

The primary7 objectof the present invention is to adapt the invention of said Aprior part to use multiple disk clutches insteadof the single surface friction clutches and brakes shown in said rior patent.

The invention may be here summarized as consisting of the 4 combinations of parts shown in the drawing and hereinafter de scribed and definitely pointed out in the claims.

In the drawing, Figure .1 is a central longitudinal section of mechanism embody-- ing the )resent invention, said section being inthe p ane indicated by line 1-1 in Fig. 2. Fig. 21s a transverse sectional view in the plane indicated by line 2 2 on Fig. `l.l

Fig. 3 is a transverse sectional vievi7 on line 3-*3 of Fig. 1. tional view 'on line 4 4 of Fig. 1. Fig. 5

- is a transverse sectional view on line 5-5 of dicated by line 7 7 of Fig. .6. Fig. 8 is Fig. v1. Fig. 6 is a detachedview of the pressure sleeve R. Fig. 7 is a. longitudinal sectional View of said sleeve in the plane ina detached elevation partly in section of the sliding sleeve T. Fig. 9 is an elevation of the same sleeve in a plane atv rightangles to that in which itis shown in Fig 8. Fig. 10

is an end `view partly broken away of the ring N, Fig. 11 is atop viewy of the ring shown 'in Fig. 10. Fig.- 12 is a longitudinal central section of the sleeve K; and Fig. 13 is an end view of the sleeve K.

Referring to thel parts by characters, A

represents the driving member, which is a shaft adapted to be turned at approximately uniform"l speed and. C is the .driven member shown in the form -of ashaft, which-is to be driven by thel driving shaft through the transmission mechanism shown, at differentspeeds and either forward or backward as compared with thedriving shaft.

Fig. 4 is a transverse sec- D represents an internal gear which is fixed to the driven shaft.

B represents a gear fixed to the driving shaft. v G represents the reversing member which is mounted so as to be rotatable on an axis which is concentric with the axis of the two shafts. Gears 7 are mounted on studs 5 secured to the reversing member and parallel ,.with the axis of the shafts A and C; and

they mesh with both the internal gear D and With` the gear B. If, therefore, the reversing member is held against.l rotation, the shaft C will be turned in the opposite direction to the. shaft A and at a speed relative thereto, which is determined by the relative diameters of the gears B and C.

H represents the lo7 speed member which is rotatively mounted upon the shaft A. Specifically, it is keyed to a sleeve zf which' is rotatably mounted on shaft A, and a gear 13 is also rigid with said sleeve. Gears 8 are rotatively mounted 011 studs 2 fixed to vthe reversing member G and parallel with the axis of shaft A; and these ears 8 mesh With the gear 13, and each mes es Wit-h one of the gears 7; If, now, the low speed member H be held against rotation, the shaft C will be driven in the same direction as the shaft A through t-lie interaction of gears` 13, 8, 7 B and D, but at slower speed than shaft A.

N is a sleeve which is keyed to shaft A. When it and the slow speed member H are connected so as to rot-ate in unison, the rotary motion will be transmitted to shaft C which will be caused to rotate, at the same speed as shaft A because the described mechanism, to wit,-gears 13, 8, 7, B and D Will all move as a unit With shaft A.

All parts above mentioned,` except sleeve N, arejthe equivalents, broadly considered, of corresponding parts disclosed in said prior patent. The parts dier in form and in relative arrangement, and some of these differences are parts of the invention herein discloseohandy now to be described, in and by `whichy multiple disk clutches and brakes aretrendered available in mechanism of this sor All ofthe describedmechanism is inclosed Within anon-rotatable case F, within which a ring E is rotatably mounted. In the eriphery of this ring are several spirally 1sposed slots e. Into each ofv these slots fe projects a stud O carrying a friction roller on its inner end, said studs being fixed to the ring and extending out through a slot f io 'two series of friction disks,the disks of one the casing. If nowithis ring be turned in either direction within the casing, (as it may be by power applied to an arm e fixed to in the casing) it will, by reason o the spiral inclination of said slots, be also moved longitudinally. At one side of this ring E are series alternating with the disks of the other series. The purpose o f these disks is to frictionally connect the reversing member G with the casing F. f One. series of disks com-` prises the disk P which is rigidly fixed to andthe vfdisk' QL which has ngers g" which l enter and 'are movable longitudinally in press into frictiona disks which thereby act as 'a brake to hold? member G immovable within .ihewcasin' g.` v

holes gl inthe P', Q, and Q lie betweenwtheffxed1 diskP and the sideof the ring E. When saidv ring` 'is turned in the samel direction as.s l1aft.A

will be moved sofi aS!- to is turned, said ring contact the two seriesl of The member G i's movable endwise a .short distance so as to permit this action. Another collection of friction disks isprovided for frictionally connecting the low speed member',

AH to the casing. .This member has acylindrical flange li in which a series offlongimounted upon the grooved cylindrical flange a The disks M of one serieshave tongues; Y m which enter; the grooves h. The disk vof the other series has a series of .fingerslw-j.

`which enter and are movable longitudinally if 4.in notches lw in the disk W', which ing'ersfA also enter holes 2 in an'annular inwardly` y directedflange f of the casing. Allbf tl'i'eV collection of disks referred to are `Vv`n io'va'blelongitudinally, but the disks' M rotate, with'-A the member H while'the disks W, W"'cansl.

not rotate. When the ring E is turned in the opposite direction to that in which the Ashaft A rotates, it also moves endwise sov as to y Cpress these disks into frictional Contactv an so lock member H to the casing. The Aaction of the described mechanism is such that the member H tends to turn in the direction opposite to that in which the shaft A is rotating. If it is not completely locked by the frictional contact ofthe described disks 'against this movement, the frictional drag of the disk M upon ring E will turn said ring in that direction which will cause` it to move endwise to vstill closer press `said disks together. There is a similar automatic locking action of the ring E in connection' disk Q. Portions of the disk` with the disks which connect the reversing member G with the casing; for this reversing member tends to turn with the shaft;

and, if it does, the frictional drag of the disk Q upon the ring E will turn said ring wise so as to more firmly press said friction disks together.

into such frictional contact that. they tend to check the turning of member G or H, as the case. may be, the described parts act automatically to so move ring E as to comp letelyset the difsk brakes.

The `following mechanism has a part in f vfrictionally clutching the shaft A with the In other words, when the` disksof either collection lhave been brought member H. .A sleeve R is. movable lundi-.A-

tudinally upon member N', which, it will e remembered, iskeyedto 'shaft'A; and said et lturned upon said 'mernberjlh -In this sleeve 'are finclined'slotsir,in which are friction sleeve vis {alsof-capables,ofbeing. slightly rollers n mounted o ngstuds'n secured toand other disks-K having tongues 7c whichenter longitudinal'- grooves' hf lthe flange h, wherefore the `disks x--K' must/#rotate with iange labutmay move longitudinally thereon. The disks J'and K lie between the end of 'member H and a pressure shoulder rton sleeve R. i

tudinally extendedarms t which enter and Yare movablel in `recesses a3 in the end of the sleeve v.l\ l,f-wherefore this sliding sleeve Timust.' rotate with the shaft.` It maybe moved longitudinally by any suitable means, asifoi example a rock-shaft V carrying at 5 in vthe sleeveT. ',On the arms t are radi- ,these slots. are parallel with the aXisof the Sleeve, but their front ends are inclined inaping the reverse of-theinclination of the slots "1. ,-Now, when. the sleeve T is moved forward,

y projecting'radiallyffroin tliemember N1" If "the sleeve 'R is movedlongitudinally, it must tui-mand, vice' versa?"l On the sleeve `R 'are' vafseriesjof disks J having l-tonguesf j which 4 project into longitudinal grooves r .in said jsle'eveg.. s"A1ternating'-gwith-v these disks are T represents a sliding' sleeve having' longil tudinal grooves 71, are cut. The disks are;

fforkfv'which engages in an annular groove V'ally .projecting studs t2. which project into and so long as the studs t2 are in the straight part of the slots "r saidmsleeve R is not moved. :But when said studs 'enter tlie'in-f clined part of'said slots the sleeve is'turned,

and because of the studs in the other slots o the sleeve R is moved to the left, thereby forcing the disks J, K, into frictional contact, whereby the sleeve R and member H are compelledvto rotate with shaft A. The

slots 1' are inclined in such direction that if, after initial contact of the friction surfaces is produced, shaft A goes faster than member H,-the studs a will by their acin that .direction which will move it endltion in slots r move sleeve inthe 'clampof a driving shaft, a concentric driven member, and intermedlate mechamsm lncluding a rotatable transmission member `which.be-

f"- Qcomes effective only when its irotat-ion isy prevented, a fixed. casing which said mechanism is inclosedyand a multiple disk clutch for frictionally connecting 'said trans-v ."flmssion member tothe casin 2. In planetary'gearinglt 1e combination "of a driving shaft,' a driven-member, and intermediate; mechanism including'a rotatable transmission member which'` beeomesj` ef-gf 1-'fectiveonlywhen its rotationis" prevent d f-a vfixed casing in' which4v said l 1 mechanism linclosed, a vmultiple disk clutch'for-jfri ally clamping said transmission im niber' the casing, which clutchvinclude's'a"pressure;

lnally in the 'clampingdirectiom','mustl'so turn. in the direct-ich vin which saidy trans# mlssion member seeks .to i,tuin, and vice. versa, and mechanism for mpvlng saidpres- 3. In planetary gearing, the combination of a driving sha t, a driven member and inT termediate mechanism, including'a rotatable transmission member which becomes effect'- ive only when its rotation is prevented, la xed casing in which said mechanism *is inclosed, a multiple 'disk clutch for friction` ally clamping said transmission member 'to the casing, a ning mounted andv adapted to turn in said casing, means whereby the ring as it -,turns is compelled to move. longitudinally, and mechanism projecting from the casing whereby said ring may be turned.

'4. In planetary gearing, the combination of a driving shaft, a driven member. and

" intermediate mechanism including a rotatable transmission member which becomes effective only when its rotation is prevented, a fixed casing in which said mechanism is finclosed, a multiple disk clutch for friction- "the casing. a ring rotatably mounted in--thev casing and having in its out-er fperiphery a plurality of inclined slots, studs Xed to said casing. and projecting into said slots, and mechanism for turning said ring.

5. In planetary gearing thecombination of a driving shaft, a driven member, and intermediate mechanism including a rotatable member -which. becomes effective only when its rotation is prevented, an inclosing casing and a multiple disk clutch, the disks of oneseriesincluding one disk connected to said reversing member and having holes series having longitudinally extended {in- 'gers which enter holes in a part ixedto the f cylindrical flange, friction disks mounted 4upon said flange and having tongues which enter the grooves thereof, a casing inclosing Vembracingthecylindrical flange of the low `speed member, one of said disks being i adl'gers vwhich pass yinto holes :inthe ange f member which, when it movesflngt-il'diand. through notches: in the'disk-adiacentjing 'and multiple disk clutches-v within said casing` jf-ally clampingsald transmission; member to ing arranged to connect the low speed `mem- .through it, 'anda disk having longitudinally` extended ingerswhich enter said holes. and the disks of theother series including a disk intermediate of the disks of t-he first named j casing, and means for moving said disks. r longitudinally into frictional contact.

- 6.y` In'A planetary gearing, the combination of'adriving shaft, a 'driven' member, and intermediate mechanism 'which includes a rotatable low speed lmember ,whichv becomes effective only when its-rotation is prevented,` I

said member having a longitudinallyslotted said mechanism having an inwardly turned annular flangey f', a series ofl .friction disks, f

acentlto" the ange ftandonelying`be latter-disk has longitudinallyfextndednthereto and a rin mountedwithin' saidcas? connected therewith by means sub#- stantiall as described WhChcOmpel it'to turn and move longitudinally'at thesame' time, said ring being arranged in opposition tothe flange withboth series-'of disks-jbei-f ftween said parts. l

. "7. In` planet-ary gearing,'the combination 100 of a driving shaft, a driven member..fand intermediate mechanism which includes a j rotatable low speed-member and a rotatable f reversing member, vwhich members .respectively become eii'ectiveonly when their rotation is prevented, an inclosing casingy .andlo arranged to connect the low speed member and the reversing member respectively with said casing, and a pressure member within the casing common to both multiple disk clutches.

8.' In planetary gearing, the combination of a driving shaft',- a driven member. and

intermediate -mechanism which includes a rotatable low speed member-and a rotatable reversing member,which members respectively become eective only when their rotation. is prevented, an inclosing casing, and twomultiple disk clutches `within said cas- 120 ber and the reversing member respectively 'with said casing, a ring rotatably mounted in said casing between the two multiple disk clutches, and connections between said ring and casing whereby when the ring is 'turned it must move longitudinally, and mechanism for turning said ring.

9. In lanetary gearing, t-he combination lof a driving shaft, a driven member, and intermediate mechanism which includes a low 130 soVY as"i

l bracing the shaft, with which sleeve the latter series of disks are connected, and mechanism by which said sleeve, when it is turned relatively to said shaft, is compelled to move longitudinally and vice versa, said sleeve and low speed member carrying respectively shoulders 'between which the specified disks lie.

11. In planetary gearing, the combination of a driving shaft, a driven member, and intermediate mechanism which includes a low speed member rotatably mounted upon .said shaft, a series of longitudinally movable friction disks connected with the low speed member, an intermediate series of longitudinally movable disks, a sleeve embracing theshaft, with which sleeve the latter series of disks are connected, and mechanism by which said sleeve, when it is turned relatively to said shaft, is compelled to move longitudinally, and v1ce versa, said sleeve' and low speed member carrying res ectively shoulders between which the speci ed disks lie, and means for turning said sleeve.

12. In planetary gearing, the combination of a driving shaft, a driven member, and intermediate mechanism which includes a low speed member rotatably mounted upon said shaft, a series of longitudinally movable friction disks connected with the low speed member, an intermediate series of longitudinally movable disks connected with said shaft, a pressure sleeve embracing the shaft, and having an inclined slot, and a stud fixed to and projecting radially from' said shaft into said slot, 'and means for moving the sleeve relatively to the shaft.

13. In planetary gearing, the combination of a driving shaft, a driven member, and intermediate mechanism which includes a low speed member rotatably mounted upon said shaft, a series of longitudinally movable friction disks connected with the low speed member, an intermediate series of longitudinally movable disks, a pressure sleeve embracing the shaft, with which sleeve the latter'series of disks are connected, said sleevehaving two oppositely inclined slots, studs fixed to and projecting radially from the shaft into one of said slots, a sliding sleeve mounted on the shaft and compelled to rotate therewith, and a stud secured thereto projecting into the other inclined slot in the slotted sleeve.

14. In planetary gearing, the combination of a driving shaft, a driven member, and intermediate mechanism which includes, a low speed member rotatably mounted upon said shaft, a series of longitudinally movable friction disks connected with the low speed member, an intermediate series of longitudinally movable disks connected with the shaft, a pressure sleeve embracing the shaft, and having one slot inclined in one direction and another slot which, in its front end, is inclined in the opposite direction, and in its rear end is a straight longitudinal slot., studs fixed to the shaft and projecting radially therefrom into the first named slot, a longitudinally sliding sleeve compelled to rotate with said shaft, and a pin fixed thereto projecting into the other slot.

15. In planetary gearing, the combination of a driving shaft, a driven member, and intermediate mechanism which includes an independentl rotatable low speed member, a plurality of longitudinally movable friction disks connected with said low speed member so as to be compelled to rotate therewith, a plurality of intermediate longitudinally movable friction disks connected with said driving shaft, a longitudinallymovable pressure sleeve, which, when it is turned in the opposite direction to that in which the shaft rotates, is compelled to move longitudinally inthe pressure direction, and vice versa, and mechanism for moving said sleeve relative to said shaft.

In testimony whereof, I hereunto afiix my signature in the presence of two witnesses. ALANSON P. BRUSH. Witnesses:

E. L. THURsToN, E. B. GrILoHRIsT. 

